I'll try to explain it better:

I'm trying to add the following: /home/rome/google-drive/{folder space}/
ipfs-sync prints out:
 Adding file to /ipfs-sync/google-drive//
Where // should look like /ipfs-sync/google-drive/{folder space}/

So for me it looks like that the add command is hanging because its trying to add a non existent path.
"/ipfs-sync/google-drive//" doesn't exist.
"/ipfs-sync/google-drive/{folder space}/" does exist.